Head for steel containers



Oct. 29, 1929. w. R. MILLER HEAD FOR STEEL CONTAINERS Filed April 12. 1928 m 2 M j \I I l l n 55 m s Z -Z I w A z 6 Z r i z Z 4 7W z z 7 z z gwwntoz MBJWZZW 15 erode and foul the same.

Patented a; 2a, 1929 PATENT o'FI-uca warm a. .mu, or msmnn omo I mum roa arm commas Application filed April 18,

This invention relates to heads for steel containers and more particularly to a device of this character which is removable. v. V

An important object of the invention 18 to rovide a construction such that when the ead is in applied position, a tight seal is rovided and, at the same time, the head may ra id] and easily removed.

A urt or object of the invention is to pro- 1 vide ina device of this character a construction such that the container is left substantially free, so far as the head mounting 'is concerned, of internal seams in wh1ch the contents of the container may collect to These and other objects I attain by the construction shown in the accompanying drawing, wherein for the purpose of illustration is shown a referred embodiment ofmy 9.0 invention and WYIBIBin Figure 1 is a plan view of a container having a head constructed in accordance with my invention applied thereto Figure 2 is a section on the line 22 of Fi ure 1;

igure 3 is a section on the line 3-3 of Figure ,1.

Referring now more particularly to the drawin the numeral generally designates the wal of a cylindrica steel container, to the upper end of which, in accordance with myinvention, I interiorly apply a sheet metal angle 11, one flange of which is rolled over the upper end of, or otherwise secured to, the container wall, as indicated at 12, and fits tightly thereagainst.

Seated upon the second flange 13 thereof is a stationary latch ring in the form of an angle iron, one flange 14 of which seats upon the flange'13 of the sheet metal angle and the other flange 15 of which extends vertically and is provided at its upper or free end, either continuously or at intervals, with enlargements 16 overlying the flange14 and having their bottom faces inclining downwardly and outwardly. These heads form wedge elements, as will hereinafter appear.

The stationary latch ring is preferably held in applied osition b reverting the inner edge of the ange 13 o the sheet metal angle 1928. Serial I0 869,558. 1

projecting guide flanlge 19 adapted to closely approach the inner e go of the flange 14. The exposed rim between this flange and the edge of the disk forms a seat for a gasket 20 which, in the applied position of the cover, will rest upon the revertedportion of the flange 13 o the sheet metal angle iron.

Secured to theup er surface of the cover area plurality of ra ially extending retainer strips 21, the outer ends of which are offset upwardly from the disk and receive there.- beneath a split extensible latch band 92.

This band preferably has its outer end edge beveled, as at 23,-'-to correspond to the inclination of the under surface of the heads 16 and has secured thereto at the ends thereof mounting blocks 24 which are horizontally slotted, as indicated at 25, and have rotatably directed 75 therethrough vertically extending pins 26. These pins have in alignment with the slots oppositely threaded openings receiving the oppositely threaded ends of a rotatable lock bolt 27 so It will be obvious that b rotating the looking bolt 27, the split ban may be expanded or contracted. When fully contracted, this band has an outer diameter similar to that of i the disk and when fully expanded, it has a greater diameter so that when the lid is laced in position and this band expande the tapered outer edge thereof, indicated at 23 will be forced beneath the tapered faces of the heads, wedging the lid'or cover downwardly so that the gasket 20 is compressed and a tight seal provided about the edges of the cover. This same operation locks the cover in position. By the structure recited, a thorough seal is provided for the container and is provided without the roduction of any inaccessible joints in which the contents of the container ma collect. Erosion of the stationary locking andor of the expansible locking band is prevented by reason of the 199 2 a means factthat the seal is made against that portion of the stationary locking band which is rotected by the reverted portion of the s set metal angle.

5 Since the construction hereinbefore set forth is capable of a certain range of change and modification without materially departing from the spirit of the invention, I do not limit myself to such specific structure except as hereinafter claimed.

I claim 1. In combination with a container, astetionary locking ring carried by the walls of the container at the upper end thereof, means associated with the ocking ring providing inclined faces overlying the locking' ring outwardly of the inner edge thereof, a cover comprising a disk adapted to clear said means and seat upon the inner edge of the lockin 26 ring, a split expansible locking ring carrie by said cover havin beveled faces for coaction with the beve ed faces of said means to force the cover downwardly toward the stationary locking ring, said locking ring having inwardly extending pairs of vertically spaced flanges paralleling the disk at opposite sides of the split thereof, vertically extending pins rotatably engaged in said flanges and a, 7 locking bolt having oppositely threaded ends 30' having threaded engagement with said pins.

2. In combination with a container having an annular seat, a'cover to engage said seat and coacting means upon the cover and seat for forcing the cover downwardly upon the seat, the means upon the cover comprising a split expansible locking ring, a member rotatably mounted upon each of the ends of said ring and extending perpendicularly to the general plane of the ring, and a locking 40 bolt having oppositely threaded ends, said rotatable members each having a threaded opening formed therethrough in which an end of the locking bolt is engaged.

In testimony whereof I aflix my signature. WALTER R. MILLER. 

